Multi-degree-of-freedom riding saddle

ABSTRACT

A multi-degree-of-freedom riding saddle includes a support portion connected to a bicycle frame. A mechanical linkage may connect a first and a second seat plate to the support portion, such that the first and second seat plates each define a floating link of the mechanical linkage. A respective first connecting rod is coupled to a front end of each seat plate, and a respective second connecting rod is coupled to a rear end of each seat plate. A first swing cross rod connects the first connecting rods such that a lowering of a front end of one of the seat plates causes a front end of the other seat plate to rise. A second swing cross rod connects the second connecting rods such that a lowering of a rear end of one of the seat plates causes a rear end of the other seat plate to rise.

BACKGROUND Technical Field

The present invention relates to the field of bicycle accessories, andin particular, to a multi-degree-of-freedom riding saddle.

Related Art

With the development of the society and the improvement of people'sliving standards, bicycles have evolved from a simple means oftransportation to an exercise mode that the masses are delighted to hearand see. People of different ages and physiques can get moderateexercise through cycling, and can flexibly formulate exercise routes andexercise intensity plans according to their physical conditions andenvironmental factors. Cycling has fewer constraints and strongautonomy, and the people can further better contact the nature duringexercise, which is good for physical and mental health.

Most of the bicycle saddles in the prior art are designed to have afront tip and a rear wider part integrally. Two legs of a rider areseparated on two sides of a protruding tip of the seat. The protrudingtip directly rubs against a root of a thigh of the rider. When the riderhas ridden for a long time, damage to the skin of the root of the thighof the rider may be caused. In addition, the protruding tip directlypresses a perineum of the rider. For a male rider, long-term pressure onthe perineum will inevitably affect blood circulation of the perineum,causing frequent urination, urgency of urination, genital discomfort,and even inflammation due to prolonged hyperemia of a prostate, therebyaffecting physical and mental health.

In order to resolve the foregoing problem, a type of seat with separateseat plates has recently appeared on the market. Front ends of the twoseat plates may rise and fall as the thighs on two sides of the rideralternately reciprocate during riding, better resolving a problem ofpressing the perineum of the rider by the protruding tip of thetraditional bicycle saddle. However, a degree of freedom of this kind ofbicycle saddle is low, and a movable part is only limited to a front endof the seat plate. During actual riding, heights of rear ends of the twoseat plates are still basically unchanged, causing the followingproblems: For example, when a right thigh exerts force for pedaling, theright thigh exerts force and presses down, and a left thigh riseswithout exerting force. On the one hand, the left thigh rises andseparates from a middle portion and a rear portion of a seat plate on aleft side, causing all the pressure to be concentrated between the rightthigh and a seat plate on the right side. Such alternately reciprocationwill cause intermittent squeezing on two thighs of the rider by the twoseat plates of the bicycle saddle, which also causes discomfort to therider. On the other hand, the middle portion and the rear portion of thetwo seat plates are always at the same height, so that a forcetransmission channel between waist force of the rider and force ofpedaling feet of the bicycle is blocked too much by the saddling duringthe pedaling, and the riding is more laborious.

SUMMARY

The present invention is intended to provide a multi-degree-of-freedomriding saddle, so that during riding, two seat plates can not onlyachieve rising and falling of front ends in an alternating reciprocationlinkage mode, but also achieve entire rising and falling of the seatplates during the rising and falling of the front ends, therebyimproving comfort and saving labor.

In order to resolve the foregoing technical problems, technicalsolutions adopted by the present invention are: amulti-degree-of-freedom riding saddle is provided, including a supportportion configured to be connected to a bicycle frame and two seatplates disposed respectively corresponding to two thighs on two sides ofa rider. A linkage portion is provided between the two seat plates andthe support portion. The linkage portion is configured to control frontends of the two seat plates to rise and fall in a riding direction in analternating reciprocation linkage mode and to control a front end of oneof the seat plates in the riding direction pushes, during falling, theother seat plate to rise entirely.

Preferably, the linkage portion includes a first swing cross rodrotatably disposed on the support portion and a first fixed cross rodfixed onto the support portion. Two ends of the first swing cross rodmay swing with a riding direction as a central axis. The first fixedcross rod is disposed horizontally and perpendicular to the ridingdirection. Two ends of the first swing cross rod are hinged to one endof the first connecting rod through the first universal ball jointmechanism. The other end of the first connecting rod is hinged to a seatplate on a corresponding side. A hinge point between the firstconnecting rod and the seat plate on the corresponding side is locatedat a front end of the seat plate near the riding direction. Throughmatching of the first swing cross rod and the two first connecting rods,a front end of one of the two seat plates in the riding directionpushes, during falling, a front end of the other seat plate to rise inthe riding direction. A second connecting rod is rotatably provided attwo ends of the first fixed cross rod are respectively. A middle portionof the second connecting rod is hinged to the first fixed cross rod andmay be rotated with the first fixed cross rod as a central axis. One endof the second connecting rod is hinged to the seat plate on thecorresponding side. A hinge point between the second connecting rod andthe seat plate on the corresponding side is located on a rear end of theseat plate near the riding direction. A second swing cross rod isfurther rotatably provided on the support portion. Two ends of thesecond swing cross rod are respectively matched with one end of the twosecond connecting rods away from the seat plate, so that a rear end ofone of the seat plates in the riding direction pushes, during falling, arear end of the other seat plate in the riding direction to rise.

Preferably, the support portion includes a first support column. Thefirst fixed cross rod is vertically fixed onto the top of the firstsupport column. The first swing cross rod is rotatably disposed at abottom end of the first support column. The second swing cross rod isrotatably disposed in a middle portion of the first support column.

Preferably, a limiting cross rod parallel to the first fixed cross rodis fixedly provided in the middle portion of the first support column.The limiting cross rod is disposed at a position at which ends of twosecond connecting rods away from the seat plate is opposite to a side ofthe second swing cross rod.

Preferably, a first rotating shaft is vertically fixed at a bottom endof the first support column. A first shaft sleeve is rotatably sleevedon the first rotating shaft. The first shaft sleeve is fixedly connectedto a middle portion of the first swing cross rod. A second shaft sleeveis rotatably provided at middle portion of the first support column. Thesecond shaft sleeve is fixedly connected to a middle portion of thesecond swing cross rod. A third shaft sleeve is fixedly provided at abottom of the seat plate and at a front end in the riding direction. Athird rotating shaft is rotatably provided in the third shaft sleeve.The third rotating shaft is vertically and fixedly connected to one endof the first connecting rod away from the first swing cross rod. Afourth shaft sleeve is fixedly provided at a rear end at the bottom ofthe seat plate in the riding direction. A fourth rotating shaft isrotatably provided in the fourth shaft sleeve. The fourth rotating shaftis fixedly connected to one end of the second connecting rod away fromthe second swing cross rod. Two ends of the first fixed cross rod arerespectively provided with an fifth shaft sleeve. The fifth shaft sleeveis fixedly connected to a middle portion of the second connecting rod.

Preferably, the second connecting rod includes a hinge portion fixedonto the fifth shaft sleeve and fixed to a fourth rotating shaft, and adeflector rod portion fixed onto the fifth shaft sleeve and matched witha limiting cross rod. An included angle between the hinge portion andthe deflector rod portion is 150°-160°.

Preferably, the first universal ball joint mechanism includes a ballfixed to one end of the first swing cross rod and a ball sleeve fixed toone end of the first connecting rod and having a cavity corresponding toa shape of the ball.

In some examples, the linkage portion includes a first swing cross rodrotatably disposed on the support portion and located at a front end inthe travel direction, a second swing cross rod rotatably disposed on thesupport portion and located at a rear end in the travel direction, and afirst fixed cross rod fixed onto the support portion and located betweenthe first swing cross rod and the second swing cross rod. Two ends ofthe first swing cross rod and the second swing cross rod may swing withthe riding direction as a central axis. The first fixed cross rod isdisposed horizontally and perpendicular to the riding direction. Twoends of the first swing cross rod are hinged to one end of a firstconnecting rod through a first universal ball joint mechanism. The otherend of the first connecting rod is hinged to a seat plate on acorresponding side. A hinge point between the first connecting rod andthe seat plate on the corresponding side is located at a front end ofthe seat plate near the riding direction. Two ends of the second swingcross rod are hinged to one end of a second connecting rod through asecond universal ball joint mechanism. The other end of the secondconnecting rod is hinged to a seat plate on a corresponding side. Ahinge point between the second connecting rod and the seat plate on thecorresponding side is located at a rear end of the seat plate near theriding direction. Two ends of the first fixed cross rod are hinged toone end of a third connecting rod. The other end of the third connectingrod is hinged to a seat plate on a corresponding side. A hinge pointbetween the third connecting rod and the seat plate on the correspondingside is located on the rear end of the seat plate near the ridingdirection.

Preferably, the support portion includes a first support column disposedalong the riding direction.

Preferably, a first shaft sleeve is rotatably provided at a front end ofthe first support column in the riding direction. The first shaft sleeveis fixedly connected to a middle portion of the first swing cross rod. Asecond shaft sleeve is rotatably provided at a rear end of the firstsupport column in the riding direction. The second shaft sleeve isfixedly connected to a middle portion of the second swing cross rod. Athird shaft sleeve is respectively rotatably provided at two ends of thefirst fixed cross rod. The third shaft sleeve is fixedly connected toone end of the third connecting rod. A first rotating shaft is fixedlyprovided at the other end of the third connecting rod. The firstrotating shaft is rotatably disposed in a fourth shaft sleeve fixed atthe rear end at the bottom of the seat plate in the riding direction.One end of the second connecting rod away from the second swing crossrod is provided with a fifth shaft sleeve matched with the firstrotating shaft for rotation. A sixth shaft sleeve is fixedly provided ata front end and at a bottom of the seat plate in the riding direction. Asecond rotating shaft is rotatably provided in the sixth shaft sleeve.The second rotating shaft is fixedly connected to one end of the firstconnecting rod away from the first swing cross rod.

Beneficial Effects

The invention includes two seat plates separated from each other. Frontends of the seat plates may rise and fall in an alternatingreciprocation mode during riding through linkage of the linkage portion,to prevent continuous pressure on a perineum of the rider in traditionalbicycle saddle.

While driving the front ends of the two seat plates to rise and fall inthe alternating reciprocation mode, the linkage portion of the presentinvention may achieve linkage of entire rise of one seat plate duringfalling of a front end of the other seat plate. Therefore, on the onehand, the entirely rising seat effectively supports a thigh exerting noforce of a rider, increasing a contact area, reducing intensity ofpressure, and preventing intermittent pressure on the thighs on the twosides by the two seat plates, further improving comfort of the presentinvention. On the other hand, a height of a thigh exerting no forceunder the support of the overall rising of the seat plate on thecorresponding side is higher than a height of the thigh exerting force,forming a tendency to incline toward the thigh exerting force, reducinga barrier against force transmission from a waist for pedaling feet, andsignificantly saving labor.

The linkage portion in the present invention can be implemented in aplurality of manners. Without departing from the overall concept of thepresent invention, a manufacturing enterprise can flexibly select aspecific structure of the linkage portion and perform suitablepopularization.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic three-dimensional diagram according to animplementation of the present invention.

FIG. 2 is a schematic three-dimensional diagram according to anotherimplementation of the present invention.

Reference Numerals 1. Limiting cross rod, 2. First support column, 3.First rotating shaft, 4. First shaft sleeve, 5. First swing cross rod,6. Second swing cross rod, 7. First universal ball joint mechanism, 701.Ball sleeve, 702. Ball, 8. Sliding rod, 9. Seat plate, 10. Thirdrotating shaft, 11. Third shaft sleeve, 12. First connecting rod, 13.Fourth rotating shaft, 14. Fourth shaft sleeve, 15. Second connectingrod, 1501. Hinge portion, 1502. Deflector rod portion, 16. First fixedcross rod, 17. Second shaft sleeve, 18. Second universal ball jointmechanism, 19. Second swing cross rod, 20. Second shaft sleeve, 21.First support column, 22. Second connecting rod, 23. Sixth shaft sleeve,24. Fifth shaft sleeve, 25. Second rotating shaft, 26. Third connectingrod, 27. Fourth shaft sleeve, 28. First rotating shaft, 29. Third shaftsleeve, 30. First connecting rod, 31. First shaft sleeve, 32. Firstswing cross rod, 33. First universal ball joint mechanism, 34. Firstfixed cross rod, 35. Fifth shaft sleeve.

DETAILED DESCRIPTION

A multi-degree-of-freedom riding saddle of the present inventionincludes a support portion and two seat plates 9. Two sliding rods 8 arefixedly provided on the support portion at intervals along a traveldirection. The two sliding rods 8 may be connected to a bicycle frame,so that a distance between the present invention and a handlebar may beadjusted. The two seat plates 9 are separated from each other anddisposed corresponding to two thighs on two sides of a rider. Throughthe two separate seat plates 9, continuous pressure on a perineum of therider by a central protrusion of a traditional bicycle riddle isprevented.

A linkage portion is further disposed on the support portion. Thelinkage portion is connected to the two seat plates 9 respectively.Through the linkage portion, rising and falling of front ends of the twoseat plates 9 in the travel direction in an alternating reciprocationlinkage mode are controlled, and a front end of one of the seat plates(9) in the travel direction during falling is controlled to push theother seat plate 9 to rise entirely. For example, a right thigh exertsforce for pedaling, the right thigh exerts force and presses down, and aleft thigh rises without exerting force. At this time, first the frontend and the whole of a seat plate 9 on a right side fall sequentially,and then a front end and the whole of a seat plate 9 on a left side risesequentially. As a result, the seat plate 9 on the left side supportsthe height-increased left thigh, and weight of a body of the rider stillrests on the two seat plates 9, preventing the intermittentreciprocating and excessive pressure of the two seat plates 9 on thighson the corresponding sides, improving comfort of the rider. In addition,a height of the left thigh is higher than a height of the right thighunder the support of the overall rising of the seat plate 9 on the leftside, forming a tendency to incline toward the right thigh, reducing abarrier of force transmission from a waist to pedaling feet,significantly saving labor.

The present invention is further described in detail through twoembodiments below. Obviously, the linkage portion of the presentinvention can adopt a plurality of structural forms. Embodimentsdescribed below are only a part of embodiments of the present invention.Those of ordinary skill in the art can further obtain linkage portionsof other structures or a combination of the linkage portions of otherstructures with the seat plate 9 and the support portion according tothe main technical concept of the present invention without contributingcreative labor, but such implementations obtained from the maintechnical concept of the present invention still fall within theprotection scope of the present invention.

First embodiment: As shown in FIG. 1, a support portion in thisembodiment includes a first support column 2. The first support column 2is inclined vertically or slightly forward or rearward along the ridingdirection. Sliding rods 8 are respectively fixedly provided on two sidesof the first support column 2 along the riding direction. The slidingrods 8 may be matched with and be fixedly mounted on a joint on abicycle frame, so that a distance between the present invention and ahandlebar may be adjusted.

The linkage portion includes a first swing cross rod 5 rotatablydisposed at a lower end of the first support column 2 and a first fixedcross rod 16 fixed at an upper end of the first support column 2. Thefirst swing cross rod 5 and the first fixed cross rod 16 are mainlinkage components of the linkage portion in this embodiment. The firstfixed cross rod 16 is disposed horizontally and perpendicularly to theriding direction. A middle portion of the first fixed cross rod isfixedly connected to an upper end of the first support column 2 bywelding. A first rotating shaft 3 is vertically fixed at a lower end ofthe first support column 2. A first shaft sleeve 4 is rotatably sleevedon the first rotating shaft 3. The first shaft sleeve 4 is fixedlyconnected to a middle portion of the first swing cross rod 5, so thattwo ends of the first swing cross rod 5 may swing up and down with theriding direction as a central axis.

Two ends of the first swing cross rod 5 are hinged to one end of thefirst connecting rod 12 through a first universal ball joint mechanism 7respectively. The first universal ball joint mechanism 7 includes a ball702 fixed to one end of the first swing cross rod 5 and a ball sleeve701 fixed to one end of the first connecting rod 12 and having a cavitycorresponding to a shape of the ball 702, so that the ball 702 may turnfreely in the ball sleeve 701 without leaving the ball sleeve 701. Theother end of the first connecting rod 12 is hinged to a seat plate 9 ona corresponding side. The first connecting rod 12 is hinged to the seatplate 9 on the corresponding side in the following manner: a third shaftsleeve 11 is fixedly provided at a bottom of the seat plate 9 and at afront end in the riding direction. A third rotating shaft 10 isrotatably provided in the third shaft sleeve 11. The third rotatingshaft 10 is vertically and fixedly connected to one end of the firstconnecting rod 12 away from the first swing cross rod 5. Therefore,through matching of the first swing cross rod 5 and two first connectingrods 12, a front end of one of the seat plates 9 in the riding directionpushes, during falling, a front end of the other front seat plate 9 inthe riding direction to rise.

A fifth shaft sleeve 35 is respectively provided at two ends of thefirst fixed cross rod 16. The fifth shaft sleeve 35 is fixedly connectedto a middle portion of the second connecting rod 15, so that the secondconnecting rod 15 may be rotated with the first fixed cross rod 16 as acentral axis. In other words, two ends of the second connecting rod 15may swing freely toward or opposite to the riding direction. An upperend of the second connecting rod 15 is hinged to a seat plate 9 on acorresponding side in the following manner: A fourth shaft sleeve 14 isfixed at a bottom of the seat plate 9 and at a rear end in the ridingdirection. A fourth rotating shaft 13 is rotatably provided in thefourth shaft sleeve 14. The fourth rotating shaft 13 is vertically andfixedly connected to the upper end of the second connecting rod 15. Inthis embodiment, a second swing cross rod 6 and a limiting cross rod 1are respectively provided on two sides of a lower end of the secondconnecting rod 15. A middle portion of the second swing cross rod 6 isfixed onto the second shaft sleeve 17. The second shaft sleeve 17 isrotatably disposed in the middle portion of the first support column 2.The limiting cross rod 1 is parallel to the first fixed cross rod 16. Amiddle portion of the first fixed cross rod is fixedly connected to thefirst support column 2. A travel space at which ends of two secondconnecting rods 15 away from the seat plate 9 moves is formed betweenthe second swing cross rod 6 and the limiting cross rod 1, so that twoends of the second swing cross rod 6 may be respectively matched withends of the two second connecting rods 15 away from the seat plate 9.For example, a right thigh still exerts force for pedaling duringriding, a front end of a seat plate 9 on a right side falls and a frontend of a seat plate 9 on a left side rises through the linkage of thefirst swing cross rod 5 and the two first connecting rods 12. As theright thigh continues to press down, a rear end of the seat plate 9 onthe right side also falls, causing the seat plate 9 on the right side tofall entirely. At this time, a lower end of the second connecting rod 15on the right side pushes a right end of the second swing cross rod 6, sothat the second swing cross rod 6 rotates counterclockwise. Then, a leftend of the second swing cross rod 6 pushes a lower end of the secondconnecting rod 15 on the left side, so that a rear end of the seat plate9 on the left side rises, further causing the seat plate 9 on the leftside to rise entirely to match the seat plate 9 on the right side thatfalls entirely, so that the rider is inclined toward the right side.

The second connecting rod 15 in this embodiment includes a hinge portion1501 fixed onto an fifth shaft sleeve 35 and fixed to a fourth rotatingshaft 13, and a deflector rod portion 1502 fixed onto the fifth shaftsleeve 35 and matched with the limiting cross rod 1. An included anglebetween the hinge portion 1501 and the deflector rod portion 1502 is150°-160°, so that a space can be utilized effectively and a heightdifference between the seat plates 9 on the left and right sides can beincreased.

Second embodiment: As shown in FIG. 2, a support portion in thisembodiment includes a second support column 21 disposed along a ridingdirection or with both ends slightly inclined upward or downward.Sliding rods 8 are respectively fixedly provided on two sides of thesecond support column 21 along the riding direction. The sliding rods 8may be matched with and be fixedly mounted on a joint on a bicycleframe, so that a distance between the present invention and a handlebarmay be adjusted.

The linkage portion includes a first swing cross rod 32 rotatablydisposed at a front end of the first support column 21, a second swingcross rod 19 rotatably disposed at a rear end of the first supportportion, and a first fixed cross rod 34 fixed onto the first supportcolumn 21 and located between the first swing cross rod 32 and thesecond swing cross rod 19. The first swing cross rod 32, the secondswing cross rod 19, and the first fixed cross rod 34 are main componentsof the linkage portion in this embodiment. A first shaft sleeve 31 isrotatably provided at a front end of the first support column 21. Thefirst shaft sleeve 31 is fixedly connected to a middle portion of thefirst swing cross rod 32. A second shaft sleeve 20 is rotatably providedat a rear end of the first support column 21. The second shaft sleeve 20is fixedly connected to a middle portion of the second swing cross rod19, so that two ends of the first swing cross rod 32 and the secondswing cross rod 19 can swing up and down with the riding direction as acentral axis. The first fixed cross rod 34 is disposed horizontally andperpendicularly to the riding direction. A middle portion of the firstfixed cross rod is fixedly connected to the first support column 21 bywelding.

Two ends of the first swing cross rod 32 are hinged to one end of afirst connecting rod 30 through a first universal ball joint mechanism33. The first universal ball joint mechanism 33 is similar to the firstuniversal ball joint mechanism 7 in the first embodiment. The other endof the first connecting rod 30 is hinged to a seat plate 9 on acorresponding side in the following manner: A third shaft sleeve 29 isfixedly provided and at a bottom of the seat plate 9 and at a front endin the riding direction. A first rotating shaft 28 is rotatably disposedin the third shaft sleeve 29. The first rotating shaft 28 is verticallyand fixedly connected to one end of the first connecting rod 30 awayfrom the first swing cross rod 32.

Two ends of the second swing cross rod 19 are respectively hinged to oneend of a second connecting rod 22 through a second universal ball jointmechanism 18. The second universal ball joint mechanism 18 is similar tothe first universal ball joint mechanism 7 in the first embodiment. Theother end of the second connecting rod 22 is hinged to the seat plate 9on the corresponding side.

A fourth shaft sleeve 27 is respectively rotatably provided at two endsof the first fixed cross rod 34. The fourth shaft sleeve 27 is fixedlyconnected to one end of a third connecting rod 26. The other end of thethird connecting rod 26 is hinged to a seat plate 9 on the correspondingside. A joint point between the third connecting rod 26 and the secondconnecting rod 22 and the seat plate 9 on the corresponding side is acommon node. The hinging is performed in the following manner: A secondrotating shaft 25 is fixedly provided at one end of the third connectingrod 26 away from the fourth shaft sleeve 27. The second rotating shaft25 is rotatably disposed in the fifth shaft sleeve 24 fixed at the rearend at the bottom of the seat plate 9 in the riding direction. A sixthshaft sleeve 23 rotatably matched with the second rotating shaft 25 isprovided at one end of the second connecting rod 22 away from the secondswing cross rod 19.

During implementation of the second embodiment, for example, the rightthigh still exerts force for pedaling during riding. Through the linkageof the first swing cross rod 32 and the two first connecting rods 30,after a front end of the seat plate 9 on the right side falls and afront end of the seat plate 9 on the left side rises, as the right thighcontinually presses down, a rear end of the seat plate 9 on the rightside also falls, so that the seat plate 9 on the right side fallsentirely. At this time, the second connecting rod 22 on the right sideis matched with the third connecting rod 26, so that a lower end of thesecond connecting rod 22 pushes a right end of the second swing crossrod 19, and the second swing cross rod 19 rotates clockwise. Then, aleft end of the second swing cross rod 19 pushes a lower end of thesecond connecting rod 22 on the left side, causing a rear end of theseat plate 9 on the left side to rise, further causing the seat plate 9on the left side to rise entirely, to be matched with the seat plate 9on the right side that falls entirely, thereby causing the rider to forma tendency to incline toward the right side.

In the two embodiments of the present invention, a thrust bearing may bedisposed between each rotating shaft and teach shaft sleeve, and betweeneach support column and each shaft sleeve, so as to reduce frictionalpause and improve flexibility of linkage of various accessories in thepresent invention.

What is claimed is:
 1. A multi-degree-of-freedom riding saddle, comprising: a support portion configured to connect to a bicycle frame; a first seat plate and a second seat plate disposed on opposing sides of the support portion, wherein the first and the second seat plates are configured to support a first and a second thigh of a rider, respectively; and a mechanical linkage operatively connecting the first and the second seat plates to the support portion, such that the first and the second seat plates each comprise a floating link of the mechanical linkage, the mechanical linkage further comprising: a respective first connecting rod coupled to a front end of each seat plate at a respective first moving hinge, a respective second connecting rod coupled to a rear end of each seat plate at a respective second moving hinge, a first swing cross rod rotatably coupled to the support portion and configured to connect the first connecting rods to each other such that a lowering of the front end of one of the first or the second seat plate causes the front end of the other of the first or the second seat plate to rise, and a second swing cross rod rotatably coupled to the support portion and configured to connect the second connecting rods to each other such that a lowering of the rear end of one of the first or the second seat plate causes the rear end of the other of the first or the second seat plate to rise.
 2. The multi-degree-of-freedom riding saddle of claim 1, wherein the mechanical linkage further comprises a first cross rod fixedly coupled to the support portion.
 3. The multi-degree-of-freedom riding saddle of claim 2, wherein the second connecting rod of the first seat plate is rotatably coupled to a first end of the first cross rod and the second connecting rod of the second seat plate is rotatably coupled to a second end of the first cross rod.
 4. The multi-degree-of-freedom riding saddle of claim 2, wherein a respective third connecting rod is coupled to the rear end of each seat plate, and the third connecting rod of the first seat plate is rotatably coupled to a first end of the first cross rod and the third connecting rod of the second seat plate is rotatably coupled to a second end of the first cross rod.
 5. The multi-degree-of-freedom riding saddle of claim 1, wherein the mechanical linkage is configured to allow simultaneous lowering of the front end and the rear end of the first seat plate.
 6. The multi-degree-of-freedom riding saddle of claim 5, wherein the mechanical linkage is configured such that simultaneous lowering of the front end and the rear end of the first seat plate causes simultaneous raising of the front end and the rear end of the second seat plate.
 7. The multi-degree-of-freedom riding saddle of claim 1, wherein the first connecting rod of the first seat plate is coupled to a first end of the first swing cross rod and the first connecting rod of the second seat plate is coupled to a second end of the first swing cross rod.
 8. The multi-degree-of-freedom riding saddle of claim 7, wherein each first connecting rod is coupled to the respective end of the first swing cross rod by a respective first universal ball joint.
 9. The multi-degree-of-freedom riding saddle of claim 1, wherein the second connecting rod of the first seat plate is rotatably coupled to a first end of the second swing cross rod and the second connecting rod of the second seat plate is rotatably coupled to a second end of the second swing cross rod.
 10. The multi-degree-of-freedom riding saddle of claim 1, wherein the support portion includes a first support column.
 11. The multi-degree-of-freedom riding saddle of claim 10, wherein the first swing cross rod is rotatably coupled to a first end of the first support column, and the second swing cross rod is rotatably coupled to a second end of the first support column. 